| 三维层状孔隙介质中弹性波的一种积分表达式I：理论 |
| |
| 引用本文： | 李娜,任恒鑫,黄清华,陈晓非.三维层状孔隙介质中弹性波的一种积分表达式I：理论[J].地球物理学报,2014,57(6):1891-1899. |
| |
| 作者姓名： | 李娜 任恒鑫 黄清华 陈晓非 |
| |
| 作者单位： | 1. 中国科学技术大学地球和空间科学学院, 合肥 230026;
2. 西方科奇, 斯伦贝谢中国分公司, 北京 100015;
3. 中国科学技术大学地震与地球内部物理实验室, 合肥 230026;
4. 北京大学地球与空间科学学院, 北京 100871 |
| |
| 基金项目： | 国家自然科学基金面上项目(41274053,41274054);国家杰出青年基金项目(41025014)资助 |
| |
| 摘 要： | 孔隙介质弹性波传播理论在地球物理勘探、地震工程和岩土动力学等领域有着广泛的应用.而孔隙介质中的弹性波受孔隙度、渗透率、流体黏滞系数等参数的影响，因此研究波场的传播特征将有助于分析和提取这些信息.本文在Biot理论的基础上，针对三维层状孔隙介质模型，利用在合成理论地震图的研究中已经被证实具有稳定、高效且适用范围较广的Luco-Apsel-Chen（LAC）广义反透射方法，给出了弹性波场的一种积分形式的半解析解，可通过数值方法高效、准确地计算层状孔隙介质中的理论波场，所以该积分形式的半解析解可为三维层状孔隙介质波场传播特征的理论数值模拟研究提供一种新的途径和手段.
|
| 关 键 词： | 层状孔隙介质 弹性波 半解析解 广义反透射方法 |
| 收稿时间： | 2013-12-13 |
An integral expression of elastic waves in 3D stratified porous media I：Theory |
| |
| LI Na,REN Heng-Xin,HUANG Qing-Hua,CHEN Xiao-Fei.An integral expression of elastic waves in 3D stratified porous media I：Theory[J].Chinese Journal of Geophysics,2014,57(6):1891-1899. |
| |
| Authors: | LI Na REN Heng-Xin HUANG Qing-Hua CHEN Xiao-Fei |
| |
| Affiliation: | 1. School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, China;
2. WesternGeco, Schlumberger China, Beijing 100015, China;
3. Laboratory of Seismology and Physics of Earth's Interior, University of Science and Technology of China, Hefei 230026, China;
4. School of Earth and Space Sciences, Peking University, Beijing 100871, China |
| |
| Abstract: | Theory of propagation of elastic waves in porous media has extensive application in many important areas, e.g. geophysical exploration, earthquake engineering, and geotechnical dynamics. Elastic waves in porous media are affected by medium properties e.g. porosity, permeability, and fluid viscosity, therefore, research of propagation characteristics of wave fields could be helpful to the analysis and determination of media properties. The Luco-Apsel-Chen (LAC) generalized reflection and transmission method has already affirmed its stability, efficiency, and wide application scope in the research of synthesis of theoretical seismogram. Based on Biot theory and aiming at three-dimensional (3D) stratified porous media, we use the LAC generalized reflection and transmission method to derive an integral expression of half-analytical solution for elastic waves, which could be used to efficiently and accurately compute the theoretical elastic wave fields in porous media by numerical method. This integral expression provides an alternative way for the theoretical research and numerical simulation of propagation characteristics of wave fields in 3D stratified porous media. |
| |
| Keywords: | Stratified porous media Elastic waves Half-analytical solution Generalized reflection and transmission method |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《地球物理学报》浏览原始摘要信息 |
|
点击此处可从《地球物理学报》下载全文 |
|
